US 12,115,958 B2
Vehicle braking control device
Atsushi Takahashi, Kariya (JP); and Hiroyuki Kodama, Kariya (JP)
Assigned to ADVICS CO., LTD., Kariya (JP)
Appl. No. 17/610,911
Filed by ADVICS CO., LTD., Kariya (JP)
PCT Filed May 19, 2020, PCT No. PCT/JP2020/019748
§ 371(c)(1), (2) Date Nov. 12, 2021,
PCT Pub. No. WO2020/235548, PCT Pub. Date Nov. 26, 2020.
Claims priority of application No. 2019-097135 (JP), filed on May 23, 2019.
Prior Publication US 2022/0212639 A1, Jul. 7, 2022
Int. Cl. B60T 8/17 (2006.01); B60T 13/74 (2006.01)
CPC B60T 8/17 (2013.01) [B60T 13/745 (2013.01); B60T 13/746 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A vehicle braking control device comprising:
a front wheel electric motor that controls a hydraulic pressure of a wheel cylinder of a front wheel of a vehicle to adjust a braking torque of the front wheel;
a first electric motor that adjusts a braking torque of a right rear wheel of the vehicle;
a second electric motor that adjusts a braking torque of a left rear wheel of the vehicle,
a fluid passage connecting a master cylinder with the wheel cylinder of the front wheel of the vehicle, the fluid passage including a master cylinder fluid passage and a wheel cylinder fluid passage, one end portion of the master cylinder fluid passage being connected to the master cylinder and one end portion of the wheel cylinder fluid passage being connected to the wheel cylinder of the front wheel,
a shutoff valve provided in the master cylinder fluid passage,
a communication fluid passage connected to a merging portion between the shutoff valve and the wheel cylinder of the front wheel in the fluid passage
a front wheel actuator connected to the fluid passage through the communication fluid passage, the front wheel actuator configured to be driven by the front wheel electric motor to adjust a hydraulic pressure of a lower portion of the shutoff valve, and
a communication valve provided in the communication fluid passage,
wherein each of the front wheel electric motor, the shutoff valve and the communication valve has a two-system coil, and the first and second electric motors have a one-system coil.